* {
    margin: 0;
    padding: 0;
    list-style: none;
    text-decoration: none;
}

body {
    background-image: url("/imgs/bj.jpg");
    background-repeat: no-repeat;
    background-size: cover;
    background-position-y: -15px;
}

.btn-back {
    padding-top: 15px;
}

.sidebar ul li {
    padding: 10px;
    border-radius: 10px;
}

.sidebar ul li:hover {
    background-color: #f4d313;
}

.sidebar ul li:hover a {
    color: white;
}

.sidebar ul li a {
    font-size: 16px;
    font-weight: 15px;
}

.main-box {
    position: absolute;
}

.comment-title {
    width: 70%;
}

.simditor {
    width: 70%;
}